Home / 422,918.37-583,634.84-231,930.09

Finding the Fourth Proportional to 422,918.37, 583,634.84 and 231,930.09

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Solution

The fourth proportional to 422,918.37, 583,634.84 and 231,930.09 is: 320,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,918.37 : 583,634.84 = 231,930.09 : x
  2. Step 2: Convert to fraction form
    422,918.37/583,634.84 = 231,930.09/x
  3. Step 3: Cross multiply
    422,918.37x = 583,634.84 × 231,930.09
  4. Step 4: Simplify right side
    422,918.37x = 135,362,480,968.34
  5. Step 5: Solve for x
    x = 135,362,480,968.34/422,918.37
  6. Step 6: Final answer
    x = 320,067.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.